The utility model discloses a dry powder storage tank inflating pipeline device of putting out a fire connects on dry powder storage tank, including discharge gas tube and gas tube down on, go up the gas tube and all connect in the end of giving vent to anger of discharge with the income gas end of gas tube down, go up giving vent to anger to hold and connecting respectively in dry powder storage tank's top and bottom of gas tube and gas tube down. This novel inflating pipeline device provides innovative design to dry powder storage tank's the mode of aerifing, the design has to be connected respectively in under and gas tube of the last gas tube of dry powder storage tank's top and bottom, the dry powder storage tank process of aerifing is for aerifing through lower gas tube bottom earlier, later aerify at the gas tube top on the rethread, adopt two steps of different modes to aerify, maximize favourable factors and minimize unfavourable ones from this, it is short to reach the pressurization time, the gas powder mixes quick evenly, the excellence effect of spurting of giving vent to anger, finally reach splendid fire control effect, but also but it is high to overcome dry powder fire extinguishing agent surplus rate, the utilization ratio is low, the problem that the quantity is big.